Demountable rim.



C. C. HARBRIDGE.

' DEmouNABLE RIM.

APPLiCAYION FILE D NOV. 19. |913.

1,15,- mendsept. 28, 1915.

,2 SHEETS-SHEET 2.

UNITE @TATES FTENT FFCE.

CHESTER C. EARBRIDSGE, OF DETROIT, MICHIGAN, ASSIGNOR'TO-DETRQIT DEIVIOUNT- ABLE RII/I CO., 0F DETROIT, MICHIGAN, A CORPORATION OFMICHIGAN.

i DEMOUNTABLE RIM.

To auw/16m t may concern:

`Be it lmown that I, CHESTER C. HAR- BRIDGE, a resident of Detroit, in the county of Wayne and State of Michigan, have invented certain new and useful Improvements in Demountable Rims, of which the following is`va full, clear, and exact description.

The invention relates to demountable rims and more particularly to that type in which the tire-holding rim is split transversely to permit fleXure of the rim within the tire and to facilitate placement of a tire on therim and its removal therefrom.

The invention designs to provide improved locking means for securing the ends of the split rim in exact registry and also improved locking-means between the split rim and a fixed band on the Wheel.

The invention consists in the several novel features hereinafter set forth and vmore par ticularly defined by claims at the conclusion hereof.

In the drawings: Figure 1 is a side elevation of a wheel embodying the invention. Fig. 2 is a section taken on line 2 2 of Fig. l. Fig. 3 is a plan of a portion of the demountable rim and the locking device applied to the inner face thereof. Fig. 4 is a section taken on line 1 -4 of Fig. 2. Fig. 5`-

is a plan similar to Fig. 3 but showingthe rim ends spread apart. Fig: 6 is a side ele.

vation of the parts as shown 1n Fig. 5. Fig. 7 is a plan view of a portion of the felly band.

The improved demountable rim 10 is formed with integral tire-holding flanges 11 and a base portion 12. The rim is split diagonally intransverse direction and is also split at an angle to the radius or undercut, as at. 14, to permit one end to be fleXed inwardly and laterally in placing a tire on the rim or in removing it therefrom. By employing an undercut, pressure upon the outside of the tire to contract the rimwillv cause one end of the rim to slide upon the` other or contiguous end and thus'tend to work `the rim loose from the tire. The rim" 10 isadapted to carry a pneumatic tire 15 'of usual construction.

The demountable rim 10 is adapted to be placed on a Wheel 16 which comprises a band Specification of Letters Patent.

Patented Sept. 28, 119115..

Application ined' November 19, 1913. serial no. 301,784.

17 which is rigidly secured to the felly 18 of the wheel and has a flange 19 at one. side thereof upon which the rim isadapted to seat. Bolts 20 are secured in the felly, and' nuts 2l engaging'screws on said.- bolts are adapted to engage wedge-lugs 22 which vbear qa'gainst onesideof and funder the rim to re` facilitate the flexing of one end ofthe rim.

For this purpose, a slidable bolt 24 and a bolt-y guide, which comprises members 25 and 26 secured tothe ends, 'respectively,. are1 provided. In manufacturing the demountable rim, boltfguide is secured to the vbase 12 of the rim by rivets28 before the rim has .been split. After the guidel has been secured to the rimpin this manner, thrim and guide are both cut or sawed 'diagonally' and angularly, so that the contiguousedges ofthe rim and the guide-members=25 and 2,6 ,willl have faces `inclined .laterallyy and linclined angularly or undercut, so thatv they will, when held together, form` asmoothjoint and so that the contiguous endsfof the guide -will be conterminous with the jrim en s. The bolt guide and each of the members thereof comprise a plate portion 3Q which is adapted to fit between the wheel-band l7 a`nd the inner face of the rim 10. A longitudinally extending slot 31 is v formed in bolt-guide andeach of the members is provided with a flange 32 between which the locking-bolt24 is adapted to slide. The flanges32extend inwardly from plate-portions 30 to form a wide bearing forthe guide-surface for the bolt 24:, so that the rimendaas Well asl the contiguous endsof guide-members 2,5, 26`

These bolts, nuts and lugs will be held against. relative1 lateral. movement.- Bolt 24: is tflared outwardly (ir-.dovef tailed, and the bearing surfaces-fertile bolt on flanges 32 are correspondingly formedto hold bolt 24 in theguide and' vto cause the bolt to secure the rim ends.L andcontiguus ends of the guide-members inaccurate vertical registry, the bolt fitting snugly in the way formed between flanges 32 and against the inner faceoffthe base 12 of the rim. A

lug 33 is formed on bolt 24 whereby the lat? v25 is correspondingly formed to receive the end of the bolt. Aslot 35 is formed in the wheel-band 17 to receive the flanges 32 of the bolt-guide and the lug 33 on the bolt. A hole 36 is 'formed in base 12 on the rim, guide-member 25, the wheel-band 17 Zand the felly 18, for the usual tire valve.

. The'outer end of each of the guide-members 25, 26 is tl-shaped, as at 37, toenter a correspondingly shaped recess 38 formed respectively on plates 39, which are riveted, as at 40 to the wheel-band 17. When the rim is on the wheel, the V-shaped ends 37, of

.the guide fitting intov the V-shaped recesses of plates 39, will lock the rim-ends against separation, and will also secure the rim against lateral movement on the wheel adjacent the split in the rim. Plates 39 fit in the space between the band 17 andthe base l2 of the rim. Guide 24 is extended laterally, as at 44, to additionally support and provide a bearing for that si'dportion of the rim, which is outwardly disposed' or overhangs the felly-bandand this is important because it secures the side-portion of the rim adjacent'the split, The plate-portion 30 of guide-members 25 and 26 bear on the band -17 when the rim is on the wheel to support the rim ends.

When the rim ends and bolt are in position illustrated in Fig.' 2 of the drawings, the rim ends will be securely locked together ag inst relative lateral or vertical movemeit by the bolt, and the rim ends may be accurately alined,.both laterally and radially to prevent any cutting of the tire by the rim ends. The dovetailed connection between the bolt andthe guide-members secures .the

base-portion of the rim ends, so that they will be flush. When a tire is to be placed on, or removed from, the rim, bolt 24 will be driven longitudinally, whiehmay be con# veniently done by the blow of al' hammer on lug 33,so that it will pass entirely into the guide-member 27, as shown in Fig. 5. The

end of the rim to which guide-member 26 is secured may then be flexed inwardly and laterally. If the tire is to be placed 'on the rim, one of its ends may beplaced inv posi"\ tion in the tire and the other end sprung inwardly or Acontracted to bring the tireholding `flanges at the sides of the tire,` and lwhen released, it will spring into place around the tire. Whe'n'l the tire has been placed on the rim, bolt 24 will be. driven to One end of bolt 24 ista-` 'span the split between the guide-members and the rim-ends and driven into guidemembers 26, so it will secure the guide-members and rim ends together. To separate the rim from the tire, it is only necessary to drive bolt 24 completely into guide-member 26 and then one end ofthe rim will be free to be sprung inwardly and laterally. To place the rimwith the tire thereon upon the wheel, the rim\wil-lbe tilted at an angle to 75 the wheel and the valve-stem will be inserted through hole 36. The V-shaped ends 37l of the guide will then be in a position to pass into the V-shaped recesses of plates 39 on` the wheel-band as the rim is tilted laterally into position around the band. This interlocking of the ends of guide 24 and plates' 39 will secure the rim against rotation rela? tively to the wedge-lugs 22, which will then be forced into position to secure the rim on .the band by nuts 2l.

The invention thus exemplifies improved locking means for the ends of the split rim whereby they will be held in accurate registry to prevent cutting of the tire andv also improved means for locking the rim against rotation of the wheel.

4The invention is not to be unl. rstood as restricted to the ydetails set forth, since these may be modified within the scope ofv the 1- appended claims, without departing from the spirit an'd'scope of the invention.

Having thus described the invention, what I claim as new and desire to secureby Letters Patent, is:

1. The combination oifa'demountable tire 4. rim, which is split transversely at one polnt, .,.f

so that its ends may be flexed, a guide on th-f inner face and extending longitudinally o l. the rim, having members secured to said. ends respectively, and aslide movable longitudinally of the rim in both of said members for securing the rim ends against relative lateral movement.

2. The combination of a demountable tire rim, which is split diagonally and transversely at one point, so thatits ends maybe flexed, a guide on the inner face and extending longitudinally ofthe rim, having members secured to said ends respectively, and a slide movable longitudinally in both of said members to secure the 'rim ends against relative lateral movement, the guidemembers having diagonal ehdconterminous with the rim ends.

3. The combination with a wheel-body comprisin a band having a Slot therein, of a demoun able rim having 'integral tirehemng flanges, and which is splittransverseltonapnint, so that its ends may be flexed, a guide extrngslengtndnally of the rim and extended inwardly to the slot in the band having members secured to said ends and having a way or slot there-- in, and a slide fitting and m 'able longitudipass intona.. in...

nally in said way or slot inthe guide tesecure the rim ends against relative lateral movement.

Il. rlhe combination of a demountable tire rim, provided with tire-holding fianges and which is split transversely at one point, so that its ends may be flexed, a guide on the inner face and extending longitudinally of i the rim, comprising members secured to said ends respectively, and a slide fitting and movable longitudinally in said members to secure the. rim ends against relative lateral movement, said slide and members being interitting to secure the rim-ends againstrelative radial movement.

5. The combination of a demountable rim which is split diagonally and transversely at one point, so that its ends may be exed, a

guide on thel inner face and extending lon gitudinally of the rim, comprising members secured to said ends respectively, and a slide fitting and movable longitudinally in both of said members to secure the rim ends against relative lateral movement, said members and slide being interfitting to secure Athe rim ends against relative radial movement, the contiiguous ends of said members being conterminous with the. rim ends.

6. The combination of a demountable rim, Y

having integral tire-holding flanges and which is split transversely at one point, so that its ends may be flexed, guide-members on the inner face and extending longitudinally of the rim, each member being secured to one endof the rim and forming ya way on the inner face of the rim and a slide fitting between the sections and slidable longitudinally in both of said members to secure the rim ends against relative lateral movement.

7. The combination of a demountable tire rim, having integral tire-holding flanges and which is split transversely at one point, so that its ends may be exed, guide-members on the inner face and extending longitudi nally of the rim, each member being secured to one end of the rim and forming a way on the inner face of the rim, a slide fitting be tween the sections and slide-ble Alongitudilnally in both of said members to secure the rim ends against relative lateral movement, said slide and sections being interitting to lock the rim ends against reifative radial movement.`

8. The combination of a demountable tire rim, having integral tire-holding flanges and which is split transversely at one point, so

thatv its ends may be exed, guide-members on the inner face of the rim, secured to said ends respectively, and a lock fitting and slidable longitudinally in both of said members to securethe rim ends against relative lat'- eral movement, said lock and members having dovetailed surfaces to secure the rim ends against relative radial movement.

9. The combination with a' wheel-body,

comprising a band, o-if a demountable tire rim having integral tire-holding fianges and which is split transversely at one point, s0 that its endsmayl be lflexed ari/deformed to leave a space around the band, guide-memlock tting and v slidable longitudinally in both of said members to secure the rim ends against relative lateral movement, said members comprising, plate-portions on vthe linner face of therim and fitting between said face and the outer face 'ofthefwheel band and guide-flanges.

fio. The Combination with a When-body,

comprising a band, of a demountable tirerim which is provided with integralv tireholding flanges and which is split transversely at one point, so that itsends maynbe flexed, and formed to leave a space around the band,`fguide members on said ends, re-v spectively,^and extending longitudinally of the rim and a lock tting and slidable lon gitudinally in both of said members to secure,

the 'rim ends against relative lateral movement, said band having a longitudinally ex, tending slot therein, the members comprlsing plate-portions iitting between the rim and the band and anges adapted to extend into saidslot inthe band. 1

211. yThe combination with a wheel-body comprising a band, of a demountable tire rim which is split transversely' at one point so that its lends may be flexed, a guideon the inner ,face of the rim having members secured ^to said ends respectively, a lock slidable insaid members to secure the rim-ends,I

together and bearing-plates on the band, disposed atthe outer ends of said guide-members, said-members and plates having interfitting ends toA secure lthe guide-members against lateral movement on the band.

12. The combination of a demountable tire rim, which is split transversely atene point, so .that its ends may be flexed, a guide on the inner face and 'extending longitudinally off the rim having members secured to said plate bearing on the band and being extended outwardly of the band to support the projecting side-portions of the rim.

le. The combination of a demountable tire rim, which is split at one point so that its ends may be flexed, a plate secured to the inner face of the rim, having members sebers secured to said ends respectively,4and extending longitudinally of ,the rim and a' cured to said ends respectively, means for ed outwardly of the band at'the latter side 'of locking the rim ends together, and a Wheell the rim to support the side of the riml prohaving a band thereon extended at one side jecting beyond the band.

to form an annular seat for one side of the CHESTER C. HARBRIDGE. rim, and having its other side disposed in- Witnesses:

Wardiy of the adjacent side of the rim, said MILDRED STUMPF,

plate bearing on the band and being extend- ETHEL GERLACH.

Copies of this patent may be obtained for ve cents eaeh, by addressing the Commissioner of Patents,

. Washington, D. 0. 

